Image forming apparatus for superposing a plurality of images on

Details Image forming apparatus for superposing a plurality of images on Image forming apparatus for superposing a plurality of images on

1991-06-10

1993-01-05

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355288, 355327, 165 89, G03G 1501

Patent

active

051775549

ABSTRACT:
In an image forming apparatus according to the present invention, a plurality of image forming process units are aligned to face a horizontal transportation section of a paper transportation path. A transfer belt unit is provided to successfully transfer images formed on photoreceptor drums of the process units to a transfer medium. A flashlight device is interposed between each two adjacent process units. Developing agent images formed by means of the process units and transferred to the transfer medium are fixed to the medium by means of the flashlight devices. By doing this, a developing agent transferred to the transfer medium by means of a preceding process unit is fixed to the medium by means of its corresponding flashlight device. Thus, in an image forming process using a subsequent process unit, images can be securely superposed without causing the previously transferred developing agent to separate from the transfer medium.

REFERENCES:
patent: 4531828 (1985-07-01), Hoshino
patent: 4796050 (1989-01-01), Furuta et al.
patent: 4862225 (1989-08-01), Heiller et al.
patent: 4984024 (1991-01-01), Ohkaji et al.
patent: 4992923 (1991-02-01), Mitsuya et al.
patent: 5014090 (1991-05-01), Santilli
patent: 5073796 (1991-12-01), Suzuki et al.

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